SOLUTION: An isosceles triangle has a perimeter of 370 millimeters. The base of the triangle is 40 millimeters. Longer than the two equal sides. What is the lenght of each side? Thank u :

Question 455315: An isosceles triangle has a perimeter of 370 millimeters. The base of the triangle is 40 millimeters. Longer than the two equal sides. What is the lenght of each side?
Thank u : )
Answer by ilana(307) (Show Source): You can put this solution on YOUR website!
Since the triangle is isosceles, the sides are the same length, x. The base is then x + 40.
So x + x + x + 40 = 370
3x + 40 = 370
3x = 330
x = 110
The lengths of the sides are 110 mm, 110 mm, and 150 mm.
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